Elexible disk plow



Aug. 15, 1950 D. 1.. STRAUSS FLEXIBLE DISK PLOW 2 Sheets-Sheet 1 FiledNov. 7, 1947 Inventor David L Strauss and 15, 1950 D. L. sTRAUss2,518,646

FLEXIBLE DISK PLOW 2 Sheets-Sheet 2 Filed Nov. 7, 1947 Inventor David L.Strauss fizmwim.

Patented Aug. 15, 1950 EnEX 'rB" nrsirriow Dayidehgstraussefldoise City,kla., rassignor -of eone-thicdi-to Edmund D. Phillips, Boise City,

-- Okla. I v

'novel iadjust'able :mounting at the front 'of ithe :plow.

' ;'I'he primary-obiect or tnis mventioms m provide means" whereby thedises of the plow are all allowed tmengage the round to an eq-ual depth.'thus more efiectively andevenl cultivating uneven 'groun'd andmorepositively eradicating weeds throughout the mwswem or length or theplow. I

-AnOther object of a s-pe'c ific character is to *provide a disc plow*construetion 5 in *whicha ground Wheel; hereinconsidered to designate'a ground contacting w-heel usd to --'control the height of s the -'pl'owbeam above the aceht ground, is mountd on th'front-side-o theplow 'andsubstantially at the hinge; pointoftwo'fsections of the plow beam.This"arrangement has been found to provide fonm'ore-even penetration orthe ground by the' discsiof the"plowfipartiy -'--beca-use positioning'of this whee behind "the discs-causes the' wheel tonde-on'--the-eart-hiloosened bythe "discs and "since the hinge jointsofsectional plow beams cannot practicably be -n1a:de to-work absolutelyfreelyfthis. "rear'positioning "of thegroundwheel"in--0therplows"aliowsthe wheel v to,cutrinto1the loosenedearth to a greater or lesser extent rather than causing the lifting andlowering of the adjacent portion of the frame. In theinstant:-invention,-* the ground wheel is in ,contact. with therelatively:hard ground-nin front of the plow and the adjacent.;;portionof ,the beam is raised and, loweredin more, perfect conformity withthe'contour'of the ground traversed by the-wheel in relation to' thecontour of' -the gro'und .traversed -by the -plow- 'discs positionednear ,thexouter 'ends'of the beam: secticnsf thus assuring more evenpenetration. 'Furthermore, placement of the ground wheel so that thesame will contact the relatively hard ground in front of the plow allowsthe same size of wheel to be used with longer beams,

Still another object of this invention is the provision of simple andreliable means whereby the ground wheel may be pivotally adjusted in ahorizontal plane, as well as in a vertical plane.

Another object is to provide 3, simplified sectional beam with hingestructure facilitating the mounting of the ground wheel and alsoallowing the use of a single relatively long hinge pin, thus simplifyingthe manufacture aswell as the maintenance of the plow.

fAnd;-a;zlast-object torbeespecifical-lw i is etc provide ma l rplowr'beam cDnstructionavhich cisrrelatively inexpensive and entirely;practicable itolimanufacture, sinipleamd convenient was well I srsafe 1to use; and whi'ch twill j-give egeneral'ly mentioned:effiei-ent'iandid-urable service.

With these objectsmas melleas other: inherent and? specific =objectswhichewilklbecome evident :as 1 this -sdesc'ription zproceeds, thisiiinventi'oni'reasides ins-certain novel pimprovementssands-refinementsainconstruction; combination?anckarrangemerit-of parts:and: portions was. willrbe described "in'zthe:specification;particularlyipeinted-out-in the appended "claims,"andwillustratedi innthetaecom- *panying drawings whichformta imaterialipaiteof this disclosure, and in which:

Figure: l'isea: fragmentary: perspective view of the' center portion ofaidisc eplowi haying athis 'inventioniincorporated:therewith;

Figure L2=L is-a top 'planz'view' vthis PimPDGVEd b'ea'm constr-uction'withz-as groundwheelccarriecl thereby;

'Figures 3" and- 4 areiviews :of :gerieral sideleva'tional characterf.signed: td'illustraterhowithis :improved bea m aand egroundewheelconstruction al1ows -the p1ow to adapt itsel'f-zrrtowuneventgronnd; andi =Figure 5=is =a i fragmentary 5131231 :of the gen -portions 'of ai-sectionalbeamietmstruction of --sli'ghtly modified form in which eachot t'h sections is ot.unitaryconstruction.

milar characters orrefereneeerelat Ws'iihi- -lar or identical 1 partsand portions 'zthroughoct the specification "and throughout vi thesev'e'ral vieWSof thed-rawin'gs.

' Referring now' tothe drawings; it "hould-'-first be noted that thesedrawings do not inel u de draft m'e'ans 3'10! means to link theillustrated bplow beam into still larger limplem'ents, ithe :former beingethought of as eir traneous to this -appl-ication and the latterbeing ordinarily unnecessary as this improved beam structure, combinedwith the forward positioning of the ground wheel, allows a pair of beamsections of lengths in the order of fifteen feet or more in length.

The sections I0 and I2 of the beam will ordinarily be of substantiallyequal length and each section includes an elongated angle plate in whichthe vertical flange 14 or 16 reinforces the section against bending,while the horizontal flange may be used as a table upon which weightsmay be placedto increase penetration of the ground by the discs I8.shafts 20 rotatably mounted in brackets 22 or otherwise conventionallymounted on the under These discs are carried on' which will be in frontof the plow, by reason of the positioning of the draft means for the" pow, not shown in the drawings.

The extending portion 26 has a channel bracket 36 adjustably mountedthereon by a pivot pin 38 of bolt character inserted through the bracketand the portion 25 and a bolt 40 inserted through I the bracket andselectively inserted through the regularly spaced apertures 32 in theportion 25.

-'A ground wheel 44 of conventional character 'is 'rotatably mounted onthe offset axle as which has its upper end pivoted in the upstandingflanges 48 and 50 of the bracket 38. In order to make the ground wheel44 vertically adjustable relative to the beam, a lever 52 is rigidlysecured to 'the offset axle 46 adjacent the flange 5901 the bracket3'6by a collar 55. This lever has a complement of locking means 56associated with a toothed rack 58 integral with the flange 58.

In the simplified embodiment of this invention illustrated in Figure 5,the beam sections 6-3 and -62, corresponding to the beam sections l I!and, and the extending portions 24 and 2% are of unitary construction.

The adjustably mounted end ground wheels 64 and 66 illustrated inFigures 3 and 4 are included in the drawings in order that a completeoperative structure may be illustrated but this invention does notextend to specific structure of these end ground wheel assemblies.

.The operation of this invention will be clearly understood from aconsideration of the foregoing description of the mechanical detailsthereof taken in connection with the above recitation of the objects ofthis invention, and it will be clear that all of these object are amplyattained. In recapitulation, it may be added that the improved plow maybe used like other disc plows and that draft means adapting the plow foruse with different types of tractors or to be horse-drawn or combinedwith other implements will be secured in any suitable manner to thesections l0 and [2, the means of securement necessarily allowing thereasonably free hinge action between the sections.

Minor variation may be made in the details of construction andproportionment of the various elements of this invention withoutdeparture 4 from the spirit and scope thereof which should be limitedonly by a proper interpretation of the terms used in the appendedclaims.

Having described the invention, what is claimed as new is:

1. A beam construction for a multiple disc plow comprising a pair ofsubstantially equally dimensioned elongated beamfis'ect'ions' hingedtogether to allow the sections to follow the contour of the landindividually as the plow is propelled,

the said sections having abutting horizontally extended portions at thehinged ends thereof, and anelongated hinge pin securing said portionstogether, one of said portions having a ground wheel mounted thereon foradjustment both vertically and about a vertical axis.

2. A beam construction for a multiple disc plow comprising a pair ofsubstantially equally dimensioned elongated beam sections hingedtogether to allow the sections to follow the contour of the landindividually-as the plow is propelled, the said sections having abuttinghorizontally extended portions at the hinged ends thereof, andan-elongated hinge pin securing said portions together, one of saidportions having a ground wheel mounted thereon, said wheel having itsaxlevertically adjustably mounted in a bracket, and means to mount saidbracket on said one portion for horizontal pivotal adjustment.

3. A beam construction for a multiple disc plow comprising a pair ofsubstantially equally dimensioned elongated beam sections hingedtogether to allow the sections to follow the contour of the landindividually as the plow is propelled, the said sections having abuttinghorizontally extended portions at the hinged ends thereof, and anelongated hinge pin securing said portions together, one of saidportions having a further horizontally extending portion and a groundwheel mounted thereon, said wheel having its axle vertically adjustablymounted in a bracket, and means to mount said bracket on said furtherextending portion for horizontal pivotal adjustment, said meanscomprising a pivot pin secured throughsaid bracket and said furtherextending portion, a plurality of spaced apertures in said furtherextending portion equidistant from said pivot pin and bolt meansinsertable through said bracket and selectively in said apertures.

DAVID L. STRAUSS. 7

Number Name Date 911,703 Clay Feb. 9, 1909 1,921,480 Ray Aug. 8,1933

